112021020109 has 8 divisors (see below), whose sum is σ = 114144797592. Its totient is φ = 109897619520.

The previous prime is 112021020091. The next prime is 112021020119. The reversal of 112021020109 is 901020120211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43106894884 + 68914125225 = 207622^2 + 262515^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112021020109 - 2²³ = 112012631501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021020119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546787 + ... + 723199.

It is an arithmetic number, because the mean of its divisors is an integer number (14268099699).

Almost surely, 2^112021020109 is an apocalyptic number.

It is an amenable number.

112021020109 is a deficient number, since it is larger than the sum of its proper divisors (2123777483).

112021020109 is a wasteful number, since it uses less digits than its factorization.

112021020109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188447.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 112021020109 in words is "one hundred twelve billion, twenty-one million, twenty thousand, one hundred nine".